ECOChem

Analyses for Industries
Wastewater - Ammonia, Nitrate, Hydrogen Sulfide, Free/Total Alkalinity
Drinking Water - Total Hardness, Calcium Hardness, Chlorine, Fluoride
Metal Pre-Treatment - Free/Total Acid, Free/Total Alkalinity, Fluoride, Nitrite
Textile - Indigo, Hydrogen Peroxide, Caustic
Mining - Cyanide, Silver, Copper, Arsenic
Pulp/Paper - ABC Analyses, Ozone, Hydrogen Peroxide
Petro-Chemical - Refinery Caustic, Sulfide/Mercaptides, Hydrogen Sulfide
Chemical - Acetic Acid, Phosphoric Acid, Caustic, Chloride
Power Generation - Low Level Hardness, Boron, Sodium

Measurement Methods
Two types of measurement methods are used for almost all NEXTChem analyzers: titration and (ion selective) standard addition. Both types of measurements methods can be used on all NEXTChem analyzers at the same time; making each type of analyzer extremely flexible. 
 

Titration Titration methods involve the addition of a reagent to the sample until an endpoint is detected with an electrode or color probe. Most of the titrations utilized by the NEXTChem Process Analyzers fall with one of five different categories: acid/base, oxidation/reduction, complexation, precipitation, or color.

Standard Addition Measurements with the Ion Selective Electrodes (ISE) utilize the standard addition method. The standard addition method involves measuring the sample with the ISE before and after a know standard has been added and using the difference in the readings to determine the concentration of a specific ion.

Precision Reagent Pump / Ring Pump The heart of a process analyzer is the way reagents are delivered to the measurement cell. The ECOChem uses two types of devices to add the required chemicals. The precision reagent pump is used to deliver the reagent which requires high accuracy (+ 0.001 mL), for example an ammonia standard. Up to two rings pumps can be added to deliver reagents which do not require high accuracy, for example a cleaning acid.

Ease of Programming
The ECOChem utilizes a push button menu driven user interface. This type of interface gives the analyzer a great degree of flexibility while maintaining an attractive price. The analyzer is programmed in a similar manner to the interaction with a bank ATM. A series of menus are selected by the end-user to program the analyzer. Each number value is programmed through a number key pad. To make the analyzer as cost effective  as possible the user interface is displayed only in English.   

Filter-Free Operations The ECOChem Analyzer like all NEXTChem analyzers are designed to operate FILTER-FREE; this type of sampling INCREASES RELIABILITY and DECEASES MAINTENANCE. To make FILTER-FREE operation possible NEXTChem has created the “self-cleaning valve”. Utilizing the “self-cleaning valve” particles up to <6 mm can be easily handled. Large bore tubing [1/4” (6 mm) or 3/8” (9mm)] is used to transfer the sample from the sample panel to the measurement cell. Combining the self-cleaning valve with large bore tubing virtual eliminates the possibility of plugging; usually the most important issue in the operation of a process analyzer.

Automated Sample Dilution The ECOChem series of analyzers can be configured to measure very high concentrations. This is accomplished by utilizing a dilution measurement cell. The dilution measurement cell is used with an external sample capture loop (5-30 mL). This allows a sample with up to <2 mm particles to be captured FILTER-FREE and sample burettes are never used.

GSM/SMS Modem The ECOChem Analyzer can be equipped with a GSM/SMS Modem. With this modem the analyzer can send alarm messages and data to a specified number of mobile phones automatically. The analyzer will also respond to text messages from a specified number of mobile phones. These users can query the analyzer for data or other types of information. This capability gives the analyzer real-time remote control and access.

Non-Dilution Measurement Cell Sample Volume 90 / 150 mL Maximum Particle Size <6mm	Dilution Measurement Cell Sample Volume 5 – 30 mL Maximum Particle Size <2mm

Technical Specifications

Enclosures
NEMA	4X (IP66) Fiberglass
Wall Mounted	47” x 27” x 14” (120 cm x 68 cm x 36 cm)
Wall Mounted	150 lbs (68 Kg)
User Interface	2.4” black and white
Temperature	40 – 100 F (5 – 40 C)
Heaters/Coolers	optional
Purge System	optional

Samples / Analyses
Titration	dilution + 0.5%, non-dilution + 0.2%
Ion Selective	dilution + 5.0%, non-dilution + 2.0%
Analysis Time	2 – 10 minutes, 5 minutes typical
Sample Points	2
Sample Temp.	10 – 212 F (-15 – 100 C)
Total Analyses	2
Reagent Pumps	4 (2 Precision Pumps / 2 Ring Pumps)
Process Control	not available

Inputs / Outputs
Analog Outputs	2	4-20 mA
Alarm Relay	1	2 A maximum
Serial Outputs	1	RS232 / Modbus
DeviceNet / Profibus-DP	0	not available
Ethernet	0	not available
Analog Inputs	1	4-20 mA

View Dimensions

For further information on this product please do not hesitate to call our technical team on 01342 820820 or email enquiries@qclscientific.com.

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